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valina [46]
3 years ago
5

Select the correct answer.

Chemistry
1 answer:
MatroZZZ [7]3 years ago
8 0

Answer:

Which phrase best describes wave motion? Movement of energy through space or a medium.

Explanation:

Answer option A.

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Whch is more acidic, a solution with a pH of 2 or 5
Molodets [167]

Answer:

A solution with a pH of 2

Explanation:

The lower a pH is in a liquid, the more acidic it is. 7 is the neutral pH for a liquid. We usually drink around that pH for water. A pH higher than 7 expresses that the liquid is a base.

3 0
3 years ago
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Temperature is a measure of the average energy of motion of an objects particles. Sometimes, if enough heat is added to or remov
Ivan
B: a liquid becomes a gas Let me know if it’s right or wrong
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3 years ago
Someone Help me please
Eddi Din [679]
The answer is starch because iodine reacts with starch to change the colour to inky blue or black.
All the others are present in milk naturally so I’m assuming they intent starch
3 0
3 years ago
Please please help me!​ please do what you can do and what you understand
ExtremeBDS [4]

Answer:

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Explanation:

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6 0
3 years ago
Use the nuclear decay reaction in the picture to answer the following question.
allsm [11]

Answer:

1a. Both sides of the decay reaction have the same charge.

b. The number of nucleons on both sides are the same.

2. The binding energy of one mole of the atom is 17.172 × 10^{16} J.

Explanation:

1a. Considering the two sides of the decay reaction and with respect to the law of conservation of charge, it can be observed that both sides have the same charge. Charge can not be created or destroyed in the process.

b. The number of nucleons on both sides are equal. No nucleon is created or destroyed in the process.

2. Binding energy is the minimum energy required to separate an atom into its nucleons. From Einstein's energy equation;

             E = Δmc^{2}

Where E is the binding energy of the atom, Δm is the mass defect and c is the speed of light.

Given that: Δm = 1.908 g/mol and c = 3 × 10^{8}. So that:

           E = 1.908 × (3*10^{8}) ^{2}

              = 1.908 × 9 × 10^{16}

              = 17.172 × 10^{16} J

The binding energy of one mole of the atom is 17.172 × 10^{16} J.

5 0
3 years ago
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